Re: Setting up updatable views ?
From: paul c <toledobythesea_at_ooyah.ac>
Date: Fri, 05 Oct 2007 17:35:47 GMT
Message-ID: <TBuNi.2256$hT1.1969_at_pd7urf2no>
Date: Fri, 05 Oct 2007 17:35:47 GMT
Message-ID: <TBuNi.2256$hT1.1969_at_pd7urf2no>
paul c wrote:
...
> I think that if the updating tuples are specified in a grouped form then
> conventional relational algebra is predictable (predictable in the
> sense of Codd's model and algebra as it has evolved), unless a view
> involving projection, union or join is involved. ...
I guess I should have included negation too. Received on Fri Oct 05 2007 - 19:35:47 CEST